Syringe appliance

ABSTRACT

A syringe appliance which is uniquely configured so as to enable the user thereof to manipulate the syringe with one hand and wherein the syringe appliance can be used time and again with disposable syrings. The syringe appliance permits positive injection or withdrawal of the inner or piston element of the syringe and is provided with a pistol-like grip to facilitate manipulation.

United States Patent [1 1 1 June 25, 1974 Hollender 1 SYRINGE APPLIANCE2,472,116 6/1949 gialyness 138/218 F 2 5 l- 2 [75] Inventor: Anders K.Y. Hollender, Boras, 2863452 1 H9 8 ge r 8/ 18 C Sweden PrimaryExaminerStanley H. Tollberg [73] Asslgnee' Hugo Castenfors HoghdsvagenAttorney, Agent, or FirmMahoney, Schick & Cislo Ennebyberg, SwitzerlandFiled: Apr. 16, 1973 Appl. No.: 351,257

U.S. Cl 222/327, 128/218 F Int. Cl A6lm 5/00 Field of Search 222/470,327, 309, 471; 128/218 P, 218 M, 218 DA, 218 F, 218 C, 218 A, 218 G, 218S, 218 R, 218 D, 218 N References Cited UNITED STATES PATENTS 9/1912Prideaux 128/218 F 5 7] ABSTRACT A syringe appliance which is uniquelyconfigured so as to enable the user thereof to manipulate the syringewith one hand and wherein the syringe appliance can be used time andagain with disposable syrings. The syringe appliance permits positiveinjection or withdrawal of the inner or piston element of the syringeand is provided with a pistol-like grip to facilitate manipulation.

5 Claims, 5 Drawing Figures PATENTEDJUNZSIHM SHEET 2 BF 2 Fig. 3.

SYRINGE APPLIANCE BACKGROUND OF THE INVENTION This invention pertains toa syringe appliance which is utilizable on a repeated basis withsyringes of the disposable type. The syringe appliance has a pistol-likegrip handle which permits the user of the syringe appliance tomanipulate injections or withdrawals of fluids or body tissue with onehand while leaving the other hand free for other purposes.

The syringe appliance of this invention is easy to use, employs apositive guided action and may be utilized in a myriad of applications.The mechanical features of the syringe appliance are such that long lifewithout mechanical breakdown is virtually assured.

While the prior art has suggested various types of syringes, thesyringes have either involved complicated and costly manufacturingtechniques or utilization of materials which have made them economicallyunattractive or alternatively undesirable with respect to the degree ofmechnical failure that has resulted. In other instances, disposablesyringes have been suggested, but these have been found undesirable insome respects.

With the hereindisclosed invention, it is now possible to utilizedisposable type syringes which are not economically infeasible.

OBJECTS AND SUMMARY OF THE INVENTION It is an object of the invention toprovide a syringe appliance.

Another object of the invention is to provide a syringe appliance havinga pistol-grip like configuration.

It is still another object of the invention to provide a syringeappliance that may be utilized with disposable syringes.

It is still another and further more important object of the inventionto provide a syringe appliance wherein use thereof may be easilyaccomplished with one hand and wherein positive action in usage isobtained.

It is still another and still further more important object of theinvention to provide an appliance for disposable syringes which is heldand manipulated by one hand of the user wherein the mechanical functionsof the appliance are virtually fault free.

These and further objects of the invention will become apparent from thehereinafter following commentary taken in conjunction with the figuresof the drawings. I

In the exemplary embodiment, the invention pertains to a syringeappliance comprising a first member having retaining means to retain theouter tube. of a syringe. A handle member is superpositioned andoperatively associated with said first member. A second member having areceiving portion to receive an end portion of the inner tube of thesyringe is reciprocally mounted for movement towards and away from saidfirst member and guide means are provided to guide the movement of thesecond member in a direct and positive manner.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. I is an enlarged perspective viewof the syringe appliance of this invention illustrating a disposablesyringe in operative position.

FIG. 2 is a side view of the syringe appliance shown in FIG. 1 but withthe syringe removed for purposes of clarity FIG. 3 is a side view of thesyringe appliance illustrated in FIG. 1 showing the appliance in thefull injecting position or alternately readied for a withdrawalfunction.

FIG. 4 is-a view similar to FIG. 3 in partial crosssection showing themechanical features of the appliance illustrated in FIG. 3; and

FIG. 5 is a view taken along the line 5-5 of FIG. 4.

DESCRIPTION OF THE BEST EMBODIMENTS COMTEMPLATED Referring to thefigures of drawings wherein the like numerals of reference designatelike elements throughout, it will be seen that the syringe appliance 2comprises a first member 4 of annular. collar-like configuration havinga cut-out or slotted portion formed by removal of a portion of theperipheral depending wall 6 so as to provide an accommodating opening 8of sufficient size to receive the outer tube 10 of the syringe assembly12. An annular bore 14 is provided in the first member 4 and theinterior upper portion 16 is provided with an annular slot 18 in orderto captively receive an annular flange 20 of the upper portion of theouter tube 10 of syringe assembly 12.

It willbe noted that the opening 8 of member 4 provides means wherebythe syringe assembly 12 and more particularly the outer tube 10 may bereceived into releasably captive relationship with respect to firstmember 4. The outer tube 10 of syringe assembly 12 is pro vided with theusual coupling and needle portion 22.

First member 4, in this instance of metal, as the remainder of theappliance (although it will be obvious to those of ordinary skill in theart that in some instances molded plastics and other materials wouldsuffice as well) has an upper flanged portion 24 extending from whichare two opposed rod-like members 26 rigidly secured to the flangeportion 24 and terminating in handle member 28 which will be noted has apistol-grip configuration. The length of the rods 26 are such that theappliance 2 may be easily held by the human hand with one or two fingersin operative association with a second member as will now be described.

The second member 30 is provided with opposed grooves or slots 32 and isguidingly retained on the rods 26 for reciprocal movement towards andaway from the flange portion 24 of first member 4. It will be noted thatthe member 30 has a lower cut-out portion 34 with an annular slot 36 toreceive, in releasably captive fashion, the upper portion 38 of theinner or piston tube 40 of the syringe assembly 12. The upper portion ofsecond member 30 is provided with an oval cut-out portion 42 which isadapted to be grasped by one or two fingers of the user of theappliance.

The second member 30 has a path of travel as determined by the uppersurface of flange 24 and the lower surface of the pistol-grip handle 28.

Referring to FIG. 3 the lower-most point to which the second member 30with the associated outer tube 40 may move is illustrated. This positionis either the full injection position where the substance in the syringeassembly 12 is to be injected or alternately the readying position forwithdrawal of fluids where the appliance 2 is tobe used for thosepurposes. The FIG. 4 illustration shows the appliance 2 in the readyposition to inject fluid contained within the tube 10 of syringeassembly 12 or alternately the full withdrawal position where the 3appliance 2 is used for withdrawing body fluids and the like.

It will be noted from FIGS. 3 and 4 that operation of the appliance 2 ispositive and direct in that the second member 30 is positively guidedalong its path of travel by the cooperation and co-action of guide meansor rods 26. It will also be noted that the retaining portion of secondmember 30 is sufficiently large to accommodate a variety of diametersizes of second tubes 40 making up a syringe assembly 12. Likewise thesame is true for the first member 24 with regard to theouter tube ofsyringe assembly 12. The only requirement for retaining the tubes 10 and40 in cooperative relationship with the first member 24 and secondmember 30 respectively is that their upper ends be provided with annulardisc portions to be received by the appropriate portions of the firstmember 24 and second member 30 as illustrated in the drawings anddescribed hereinbefore.

While the invention has been described with respect to a specificillustration thereof, it will become apparent to those of ordinary skillin the art that various modifications and changes will suggestthemselves and all such changes and modifications are intended to becovered by the appended claims.

I claim:

1. A manually operated syringe appliance for injecting and withdrawingfluids solely by manually applied forces comprising the combination: afirst, collar-like member having a vertically open wall portion and anupper annular slot to captively receive the outer tube of a syringe inretained relationship therewith; a second block-like member havingopposed lateral grooves and a first opening in the upper portion thereofsufficient in size to accommodate one or more human fingers, the lowerportion having a second opening inner-set from said lateral grooves witha retaining slot to transversely receive the inner tube of a syringe inaxially retained operative association between said lateral grooves andsaid guide members, and being adapted to slideably move between saidhandle member and said first member solely by the application of manualforces.

2. The syringe appliance in accordance with claim 1 wherein one terminusof said handle member is positioned in aligned relationship to one pointon the outer periphery of said collar-like member and the oppositeterminus of said handle member extends beyond the periphery of saidfirst collar-like member opposite said one point.

3. The syringe appliance in accordance with claim 2 wherein said firstopening of said second, block-like member is oval-shaped.

4. The syringe appliance in accordance with claim 3 wherein said guidemembers are linear rods.

5. The syringe appliance in accordance with claim 4 wherein the lengthof said linear rods is sufficient to accommodate the inner tube of thesyringe and facilitate grasping of said handle member and saidoval-shaped opening of said second, block-like member by the human handfor single hand use of said appliance.

UNITED STATES PATENT OFFTCE I CERTIFICATE @F CGRECTIGN Y g tenoNo. I-3,8155091 Dated June 25 1974 lmntofls) 7' ANDERSY K. Y. HOLLENDER It iscertified that error appears in the above-identified patent and that'said Letters Patent are hereby corrected as shown below:

Ass'ignee: HUGO CASTENFORS, .Hoglidsvagen,

i En'ebyberg, Sweden sighed and sealed this 22nd day of October 1974.

(SEAL) Attest:

McCOY M. GIBSON JR. c. MARSHALL DANN Attesting Officer Commissioner ofPatents e USCOMM-DC 6O376-P69 u.s. GOVERNMEIINT PRINTING omcs: I989o-aee-asa FORM Po-1oso (10-69)

1. A manually operated syringe appliance for injecting and withdrawingfluids solely by manually applied forces comprising the combination: afirst, collar-like member having a vertically open wall portion and anupper annular slot to captively receive the outer tube of a syringe inretained relationship therewith; a second block-like member havingopposed lateral grooves and a first opening in the upper portion thereofsufficient in size to accommodate one or more human fingers, the lowerportion having a second opening inner-set from said lateral grooves witha retaining slot to transversely receive the inner tube of a syringe inaxially retained relationship therewith; a handle member forming apistol grip-like configuration; and a pair of guide members operativelysecured in spaced relationship between said first member and said handlemember and forming a guide path therebetween, said second, block-likemember being slideably mounted on said guide members for operativeassociation between said lateral grooves and said guide members, andbeing adapted to slideably move between said handle member and saidfirst member solely by the application of manual forces.
 2. The syringeappliance in accordance with claim 1 wherein one terminus of said handlemember is positioned in aligned relationship to one point on the outerperiphery of said collar-like member and the opposite terminus of saidhandle member extends beyond the periphery of said first collar-likemember opposite said one point.
 3. The syringe appliance in accordancewith claim 2 wherein said first opening of said second, block-likemember is oval-shaped.
 4. The syringe appliance in accordance with claim3 wherein said guide members are linear rods.
 5. The syringe appliancein accordance with claim 4 wherein the length of said linear rods issufficient to accommodate the inner tube of the syringe and facilitategrasping of said handle member and said oval-shaped opening of saidsecond, block-like member by the human hand for single hand use of saidappliance.